Spark Plugs for B58 - Controlled Gap Setting BMW M140i M240i F20 F21 F22

On the B58, and especially with ethanol maps, ignition problems are often not resolved by fitting new spark plugs, even OEM ones.

This sometimes shows up as an unstable idle, misfires, as well as hesitation or unexpected stalling.

We have the solution: high-quality NGK spark plugs, gapped correctly for the fuel used (SP98 or ethanol).

Price for a pack of 6 NGK spark plugs, gapped and checked.

Team Lupos tip:

"Spark plugs with the right gap give better ignition, but they also wear out prematurely. Allow for 8 to 10,000 km of use."